参考文献:
Merck,E. Patent: DE62257 , 94 Fortschr. Teerfarbenfabr. Verw. Industriezweige, vol. 22, p. 622 Full Text Show Details Merck and Co. Inc. Patent: US249279 , 95 Full Text Show Details Kushner et al. Journal of the American Chemical Society, 952 , vol. 74, p. 67,68,620
参考文献:
Merck,E. Patent: DE62257 , 94 Fortschr. Teerfarbenfabr. Verw. Industriezweige, vol. 22, p. 622 Full Text Show Details Merck and Co. Inc. Patent: US249279 , 95